<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>jsonp的原理</title>
    <script src='modulea.js'>

    </script>
    <script src='http://localhost:9090?callback=getDatas'>
      //等价于下面的代码
    </script>

    <!-- <script>
        getData({"name":"jsonp","age":20})
    </script> -->
   
</head>
<body>
    
</body>
</html>